Solution : https://service.sap.com/sap/support/notes/209846 (SAP Service marketplace login required)
Key words :
prerequisites system field sy-tcode, additional key words vl02n, programmed source code depending, field sy-tcode, field t180-trtyp, v50agl-sammelgang flag, t180-trtyp = 'h', v50agl-sammelgang = 'x', v50agl-sammelgang = space, mentioned advice works
Related Notes :
| 832383 | Condition values incorrect at header level |
| 524154 | User exits apparently not run in include MV50AFZ1 |
| 415716 | User exits in delivery processing |
| 335277 | VL10: VA03 instead of VA02 in display of orders |