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Error "Certificate used for S2S authentication of Dynamics 365 Onpremise....." when importing data?

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Posted on by Stone Huang

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Hi Guys,

We are in a D365 OP environment. Recently, I encountered this error when trying to import data. However, we are not using Exchange Online, and our D365 certificate has not expired. Has anyone encountered this issue? How to resolve it?Can you give me specific steps?

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Microsoft Dynamics CRM

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Tom_Gioielli 3,096 Super User 2026 Season 1 on at

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I don't have specific answers for your yet, but a bit more information might help us diagnose what could be happening.

What table are you importing data to? Is this happening for every table, or just this one?

Do any data imports work, or when did the problem stop happening?

At what point of the import process are you seeing this error? Is it as soon as you click the "Import from CSV" button, after you do the mapping, somewhere during the import itself?

Hopefully some of that information can narrow it down a bit more.

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DAnny3211 11,421 Super User 2026 Season 1 on at

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Hi,

Thank you for sharing the details of your issue. From what you've described, it appears that the error is caused by a mismatch between the quantities in the Sales Return Order and the Blanket Sales Order. Specifically, when the SRO is posted, the Qty Shipped and Qty Invoiced are reset to zero, but the BSO columns are not updated accordingly. This leads the system to believe that there is no remaining quantity available to ship, even though there should be.

To address this, consider the following steps:

Review whether the rejected documents are still linked to the Blanket Sales Order. If they are, removing or properly unlinking them may help.

Manually adjust the quantities in the BSO to reflect the correct outstanding amount.

Alternatively, increasing the BSO quantity could allow further orders without modifying posted data, which is generally a safer approach.

It's best to avoid direct changes to posted data, as this can lead to inconsistencies and potential issues with reporting or audits.

Please verify if this response was helpful.

Thanks and best regards,
Daniele
Note: This response was prepared with support from Copilot to ensure clarity and completeness.

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