Predictika · Bathroom furniture

An AI sales agent's bathroom vanity quote, checked before it goes out

An AI sales agent prepares a quote for Duravit D-Neo bathroom furniture: the wall-hung vanity unit, its finish, the furniture washbasin, siphon, mirror, the wall it hangs on and the number of units. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the D-Neo range and returns a verdict, every reason and the figures it computed.

Scope: Duravit D-Neo wall-hung vanity units (DE4359, DE4355, DE4356) with their furniture washbasins (236760, 236780, 236710): finish, siphon, tap, mirror, wall, drain height, quantity and the quote total. See everything this validator covers

This validator models quotes for the D-Neo vanity range as it appears on Duravit's product pages and retailer listings (read October 2026), not just the scenarios shown below.

  • Vanity and basin — the 60, 80 and 100 cm D-Neo vanity units, each with the furniture washbasin made for its width, and the vanity-only option with no basin.
  • Finish and options — Concrete Grey Matt, Black Oak, White Matt and White High Gloss, the standard and space-saving siphons and the matching-width mirror.
  • Installation — the wall the unit hangs on, the drain height, and the one-hole basin, which rules out a wall-mounted tap.
  • Quantity and price — order size, project orders, discount approval and the stated total.

Any quote for these products that touches these rules is in scope — not only the scenarios pictured here. Not covered: other D-Neo furniture (tall units, side units, countertop basins), other Duravit series, faucets, installation labour, tax and freight. The vanity and basin pairings, finishes and the one-hole basin come from Duravit's public product pages; the prices (except where a US list price was seen on a retailer page), the wall, drain and quantity limits and the discount threshold are illustrative figures modeled from comparable products, not Duravit prices or policy.

The AI sales agentBuilds the vanity quote from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

8 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
A basin that only fits one vanity widthOnly with care
Each of the three vanities takes only its own washbasin, so a pairing table has to be kept in step with the catalogue.		The vanity and the basin are in one request and the pairing is checked on every call.
A tap choice that depends on the basinOnly with workarounds
The basin has one tap hole and no hole-free version, so a wall-mounted tap is ruled out only when a basin is on the order.		The tap and the basin are checked together, and a vanity-only order is left alone.
A mirror that must match the vanity widthOnly with care
The mirror width is a separate product choice that has to equal the width of the vanity chosen.		The width is looked up from the vanity and compared with the mirror on every call.
Limits that depend on the wall and the widthOnly with workarounds
Plain drywall is blocked for the wide units but only flagged for the narrow one, so the same field has two outcomes by width.		Block and approval outcomes are decided together from the wall and the vanity width.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the quote is saved or a step is completed, so a rep often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1The washbasin on the order is not the one made for this vanity unit width; each D-Neo vanity takes only its own furniture washbasin.
2The space-saving siphon is ordered but the quote has no washbasin to fit it to.
3The D-Neo washbasin has one tap hole and no tap-hole-free version, so a wall-mounted tap cannot be used.
4The mirror is 60 cm wide; it must match the 80 cm vanity unit.
5The mirror is 100 cm wide; it must match the 80 cm vanity unit.
6A floating vanity 80 cm wide with its basin needs a masonry wall or reinforced drywall; plain drywall is not enough.
7The 60 cm vanity is to hang on unreinforced drywall; this is modeled as needing an installer check of the wall.
8A floating vanity 100 cm wide with its basin needs a masonry wall or reinforced drywall; plain drywall is not enough.
9The wall drain is 34 cm above the floor; the vanity and siphon need it between 35 and 55 cm.
10The wall drain is 56 cm above the floor; the vanity and siphon need it between 35 and 55 cm.
11The order is for 0 vanity units; one order covers 1 to 20.
12An order of more than 10 vanity units is handled as a project order and needs a person to confirm delivery and pricing.
13The order is for 21 vanity units; one order covers 1 to 20.
14With the standard siphon the upper drawer loses storage space to the pipe; the space-saving siphon is the usual choice, so a person should confirm the customer wants the standard one.
15The quote gives a discount above 10 percent; discounts above that are modeled as needing sales management approval.
16The quote states a total of $2,386.00; the illustrative prices give $2,387.00.
17The quote states a total of $2,388.00; the illustrative prices give $2,387.00.
18The quote states a total of $0.01; the illustrative prices give $2,028.95.
19The mirror is 60 cm wide; it must match the 100 cm vanity unit.
20The wall drain is 70 cm above the floor; the vanity and siphon need it between 35 and 55 cm.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Vanities with the wrong basin and tap: 100 cm gloss vanities with the 60 cm basin and a wall-mounted tap

    
The agent's request. Please quote 2 Duravit D-Neo wall-hung vanity units DE4356 (100 cm) in White High Gloss, each with the D-Neo furniture washbasin 236760 and the space-saving siphon. The customer will fit a wall-mounted tap and the wall drain is 45 cm above the floor. The units hang on a masonry wall. Add a mirror, 100 cm wide. Apply a discount of 5 percent. The quote states a total of $4,854.50. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Washbasin does not fit the vanity. The washbasin on the order is not the one made for this vanity unit width; each D-Neo vanity takes only its own furniture washbasin.
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  • Wall-mounted tap with a one-hole basin. The D-Neo washbasin has one tap hole and no tap-hole-free version, so a wall-mounted tap cannot be used.
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2. Vanities with the wrong basin and tap: The agent resubmits after fixing the errors

    
The agent's request. Please quote 2 Duravit D-Neo wall-hung vanity units DE4356 (100 cm) in White High Gloss, each with the D-Neo furniture washbasin 236710 and the space-saving siphon. The customer will fit a deck-mounted tap and the wall drain is 45 cm above the floor. The units hang on a masonry wall. Add a mirror, 100 cm wide. Apply a discount of 5 percent. The quote states a total of $5,608.80. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Quote summary. 100 cm vanity unit, unit price $2,952, list subtotal $5,904 for 2 units, total $5,608.80 (illustrative prices).
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3. A vanity on plain drywall: An 80 cm vanity on plain drywall with a 100 cm mirror and a high drain

    
The agent's request. Please quote 1 Duravit D-Neo wall-hung vanity unit DE4355 (80 cm) in Black Oak, with the D-Neo furniture washbasin 236780 and the space-saving siphon. The customer will fit a deck-mounted tap and the wall drain is 60 cm above the floor. The units hang on plain drywall. Add a mirror, 100 cm wide. The quote states a total of $2,457.00. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Mirror width differs from the vanity. The mirror is 100 cm wide; it must match the 80 cm vanity unit.
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  • Wide vanity on unreinforced drywall. A floating vanity 80 cm wide with its basin needs a masonry wall or reinforced drywall; plain drywall is not enough.
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  • Drain height outside 35 to 55 cm. The wall drain is 60 cm above the floor; the vanity and siphon need it between 35 and 55 cm.
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4. A vanity on plain drywall: The agent resubmits after fixing the errors

    
The agent's request. Please quote 1 Duravit D-Neo wall-hung vanity unit DE4355 (80 cm) in Black Oak, with the D-Neo furniture washbasin 236780 and the space-saving siphon. The customer will fit a deck-mounted tap and the wall drain is 60 cm above the floor. The units hang on reinforced drywall. Add a mirror, 80 cm wide. The quote states a total of $2,387.00. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Drain height outside 35 to 55 cm. The wall drain is 60 cm above the floor; the vanity and siphon need it between 35 and 55 cm.
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5. A vanity on plain drywall: The agent resubmits after fixing the errors

    
The agent's request. Please quote 1 Duravit D-Neo wall-hung vanity unit DE4355 (80 cm) in Black Oak, with the D-Neo furniture washbasin 236780 and the space-saving siphon. The customer will fit a deck-mounted tap and the wall drain is 45 cm above the floor. The units hang on reinforced drywall. Add a mirror, 80 cm wide. The quote states a total of $2,387.00. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Quote summary. 80 cm vanity unit, unit price $2,387, list subtotal $2,387 for 1 unit, total $2,387.00 (illustrative prices).
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6. A project order and its discount: 24 vanities with an 18 percent discount

    
The agent's request. Please quote 24 Duravit D-Neo wall-hung vanity units DE4359 (60 cm) in Concrete Grey Matt, each with the D-Neo furniture washbasin 236760 and the space-saving siphon. The customer will fit a deck-mounted tap and the wall drain is 45 cm above the floor. The units hang on a masonry wall. Add a mirror, 60 cm wide. Apply a discount of 18 percent. The quote states a total of $29,657.76. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Quantity outside 1 to 20. The order is for 24 vanity units; one order covers 1 to 20.
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  • Discount above 10 percent. The quote gives a discount above 10 percent; discounts above that are modeled as needing sales management approval.
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7. A project order and its discount: The agent resubmits after fixing the errors

    
The agent's request. Please quote 12 Duravit D-Neo wall-hung vanity units DE4359 (60 cm) in Concrete Grey Matt, each with the D-Neo furniture washbasin 236760 and the space-saving siphon. The customer will fit a deck-mounted tap and the wall drain is 45 cm above the floor. The units hang on a masonry wall. Add a mirror, 60 cm wide. Apply a discount of 18 percent. The quote states a total of $14,828.88. It is ready to send.

    
Verdict: Needs approval.

    
    
      
  • Project quantity above 10. An order of more than 10 vanity units is handled as a project order and needs a person to confirm delivery and pricing.
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  • Discount above 10 percent. The quote gives a discount above 10 percent; discounts above that are modeled as needing sales management approval.
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  • Quote summary. 60 cm vanity unit, unit price $1,507, list subtotal $18,084 for 12 units, total $14,828.88 (illustrative prices).
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8. A project order and its discount: The agent resubmits after fixing the errors

    
The agent's request. Please quote 10 Duravit D-Neo wall-hung vanity units DE4359 (60 cm) in Concrete Grey Matt, each with the D-Neo furniture washbasin 236760 and the space-saving siphon. The customer will fit a deck-mounted tap and the wall drain is 45 cm above the floor. The units hang on a masonry wall. Add a mirror, 60 cm wide. Apply a discount of 10 percent. The quote states a total of $13,563.00. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Quote summary. 60 cm vanity unit, unit price $1,507, list subtotal $15,070 for 10 units, total $13,563.00 (illustrative prices).
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares a quote for Duravit D-Neo bathroom furniture: the wall-hung vanity unit, its finish, the furniture washbasin, and more. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the D-Neo range and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please quote 2 Duravit D-Neo wall-hung vanity units DE4356 (100 cm) in White High Gloss, each with the D-Neo furniture washbasin 236760 and the space-saving siphon. The customer will fit a wall-mounted tap and the wall drain is 45 cm above the floor. The rest of the request is on screen. The quote states a total of $4,854.50.
    4. 
      
  4. Before it goes out, the agent calls the validator.
    5. 
      
  5. Blocked, with two findings, all in one answer. The washbasin on the order is not the one made for this vanity unit width; each D-Neo vanity takes only its own furniture washbasin. The D-Neo washbasin has one tap hole and no tap-hole-free version, so a wall-mounted tap cannot be used.
    6. 
      
  6. The validator returned two blocking findings in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
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  7. What this shows: for a basin that only fits one vanity width, a rules-based CPQ is error-prone for this.
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  8. Now the agent resubmits.
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  9. The corrected request. It changes the washbasin to D-Neo 236710, the tap to deck-mounted and the stated total to $5,608.80.
    10. 
      
  10. It calls the validator again.
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  11. This time the validator clears it.
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  12. The validator also returns the line-item quote. It starts with Duravit D-Neo vanity unit DE4356 and White High Gloss finish surcharge; the other three lines are on screen.
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  13. Both earlier findings are cleared, and the validator's total, $5,608.80, matches the quote.
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  14. Two problems caught in one call, fixed in one pass, and a clean $5,608.80 quote. That is the value of Predictika's validator: catching mistakes before they reach the customer. Now you can try the other scenarios yourself.
    15.