structure problem with incoming IDOC

Hi,

i am facing a problem with incoming idoc´s.

In our scenario a SAP ERP system is sending the idoc to the pi system.

I importet in the ESR the relevant IDOC structures and made my mappings.

When the sender system send the IDOC the structure in the sender system (BD87) is correct.

When i look in sxmb_monitor for the incoming idoc the structure is not correct. The data is complete but in the wrong fields.

example:

IDOC in sender system:

Value1 </1>
<2>Value2 Value1Value2 </3>

</test>

Could there any problems occour while the idoc is transformed to idoc-xml?

Any ideas?

Many thanks

Michael