LSMW Handling multiple recordings (“Generation cancelled. Reason: No Target Fields”)

Hi Experts,

I have a scenario in which i need to run SM36 and SM37 tcode back to back to upload data .I have done two recordings one for SM36 and another for SM37.

I need to have a sequence for these two T-code so I have done my Source structure (step 2) on two levels like that:

1)   SM36

              2) SM37

For these two levels of structure, I have source field:

SM36 (level1)

-JOB_CREATION

-PRGM_STEP1

-VAR_STEP1   

                   SM37(level 2)

                                   -JOB_CREATION ( in order to make the link with the first level)

                                   -JOB_MODIFICATION

                                  - PRGM_ADD

                                    -VAR_ADD

With these structure, I can read DATA correctly, I have the two levels when I display the read data but I encounter an issue when I do convert data ( Step 11): “Generation cancelled. Reason: No Target Fields”.

The problem must be in the step 5 (Maintain Field Mapping and Conversion Rules) with the mapping of source fields but I don’t find the solution.

Have you some some idea as towhat changes need to be done in lsmw?

You will find screenshot of the structure in attachement.

Thanks in advance