Segment ID missing.
Segment buffer '%s'
Description
Each segment in the EDI file must contain a segment identifier. The segment ID is then followed by data element values separated by a data element separator. The segment ID is used to extract the defined structure of the segment from the implementation guideline, and then used to map the values to the data element or composite data elements. If there is no segment ID present, which is indicated by a data segment terminator followed immediately by a data element terminator, this error is generated.