| Event Id | 4100 |
| Source | BizTalk Accelerator for HL7 |
| Description | Validation error in header during parsing Error # 1 Segment Id: MSH Sequence Number: 1 Field Number: 7 Error Number: 102 Error Description: Data type error Encoding System: HL7nnnn. |
| Event Information | According to Microsoft: A supported hotfix is now available from Microsoft, but it is only intended to correct the problem. Only apply it to systems that are experiencing this specific problem. You do not have to restart your computer after you apply this hotfix. |
| Reference Links | You may receive a validation error on system-generated acknowledgements for version 2.1 messages in BizTalk Server Accelerator for HL7 |
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