web
You’re offline. This is a read only version of the page.
close
Skip to main content

Announcements

No record found.

News and Announcements icon
Community site session details

Community site session details

Session Id :
Dynamics 365 Community / Forums / Small and medium business | Business Central, N... / Assembly Order Posting...
Small and medium business | Business Central, N...
Suggested Answer

Assembly Order Posting Error

(1) ShareShare
ReportReport
Posted on by CU04021004-0 84
Hello All,

I have been stuck on an error for the past week while trying to post an assembly order.

The error message is:
 You cannot reserve this entry because it is not a true demand or supply.

I have reviewed Microsoft's suggested solution, which mentions verifying the Item’s Reserve setting and checking for production order usage.

In my case:

The item’s Reserve is set to Optional

I am not using any production orders

Despite this, the issue persists.

Can anyone help me understand why this is happening or suggest a possible fix?
Categories:
Dynamics 365 Business Central
I have the same question (0)
  • Suggested answer
    Khushbu Rajvi. Profile Picture
    Khushbu Rajvi. 22,433 Super User 2026 Season 1 on at
  • CU04021004-0 Profile Picture
    CU04021004-0 84 on at
    Hello khushbu,

    Thanks for your suggestions regarding the issue.

    However, I would like to clarify once again that we are not using Job Orders or Production Orders in our process. We are strictly working with Assembly Orders only.

  • Suggested answer
    Valentin Castravet Profile Picture
    Valentin Castravet 32,691 Super User 2026 Season 1 on at
    Are you using the latest version of Business Central, or an older version of NAV/BC? There was a bug in some earlier versions that could trigger this error message.

    If you’re already on the latest version of BC, try deleting the assembly order and recreating it to see if the error persists.
     
  • Suggested answer
    Jainam M. Kothari Profile Picture
    Jainam M. Kothari 16,538 Super User 2026 Season 1 on at
    Hello,
     
    To resolve the "You cannot reserve this entry because it is not a true demand or supply" error in Business Central, ensure your item's Reserve setting is correct, verify that the assembly order is linked to a valid demand like a sales order, review your inventory setup to avoid automatic reservations, and clear any unwanted reservation entries.
     
     

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Introducing the 2026 Season 1 community Super Users

Congratulations to our 2026 Super Stars!

Meet the Microsoft Dynamics 365 Contact Center Champions

We are thrilled to have these Champions in our Community!

Congratulations to the April Top 10 Community Leaders

These are the community rock stars!

Leaderboard > Small and medium business | Business Central, NAV, RMS

#1
OussamaSabbouh Profile Picture

OussamaSabbouh 2,138 Super User 2026 Season 1

#2
YUN ZHU Profile Picture

YUN ZHU 1,279 Super User 2026 Season 1

#3
AndrewThomas81 Profile Picture

AndrewThomas81 1,192

Last 30 days Overall leaderboard

Featured topics

Product updates

Dynamics 365 release plans