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D365 Sales to BC Integration - Sales Order Sync Issue

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Posted on by MRVIX

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I encountered this issue when trying to run a full sync for Sales Orders.

"The data could not be updated because of the following error: You may not enter numbers manually. If you want to enter numbers manually, please activate Manual Nos. in No. Series ."

Are there any possible considerations that needs to be confirmed or checked before I follow this activation of Manual Nos in No. Series? Also, where do we update this?

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Dynamics 365 Business Central migration

Dynamics 365 Business Central

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Pallavi Phade 5,420 Super User 2026 Season 1 on at

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Namaste @MRVIX

As per above error , its related to setup in NO series . If you are sending document no from CRM as mapping then you need to enable Manual No Series boolean in No Series .

Check No series mapped in Sales & Recievables Setup for Sales Order No's

Warm Regards

Pallavi Phade

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RockwithNav 8,941 Super User 2026 Season 1 on at

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This is happening because the CRM from which you are trying to send back(syncing) the data to Business central is conflicting with the configuration BC is having. Seems No is coming back to BC from CRM and BC is rejecting that request because BC is instructed to generate it's own numbering. Check the number series system using and then enable the manual no from the no series window.

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Jainam M. Kothari 15,732 Super User 2026 Season 1 on at

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Hello,

Before enabling Manual Nos. for Sales Orders in Business Central, confirm that it won’t violate compliance or audit requirements, cause numbering inconsistencies, or break integrations that rely on auto-generated sequences; also ensure proper user permissions and apply the setting consistently across environments.

I agree with Pallavi Phade, and to activate it, go to No. Series, select the series used for Sales Orders, and check the Manual Nos. option, verifying the assigned series in Sales & Receivables Setup.

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MRVIX 1,425 on at

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Hi All, thank you for you responses.

@Pallavi Phade @Jainam M. Kothari I tried updating the Manual Nos. However, I still get same error.

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OussamaSabbouh 12,808 Super User 2026 Season 1 on at

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Hello,

That sync error means Dataverse is trying to send a Sales Order number into BC, but BC’s No. Series doesn’t allow manual numbering.
To fix it, you normally enable Manual Nos. on the Sales Order No. Series only if you actually want Dataverse to supply its own order numbers.

Where to change it:
Search → No. Series → locate the Sales Order series → mark “Manual Nos.” = TRUE.

Before doing that, just confirm:

Dataverse is indeed sending its own Sales Order No. (common).

You’re OK with BC accepting external order numbers.

If not, map the number field to blank or let BC assign the number instead.

Regards,
Oussama Sabbouh

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Rishabh Kanaskar 6,219 Super User 2026 Season 1 on at

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Hi,

If your integration uses multiple series (e.g., for different order types), you need to enable Manual Nos. for all relevant series.

Thanks

Rishabh

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