Edit and delete reservation by MRESCR IDoc

Hi all;

With your guidance, I was able to set up the IDoc (MRESCR) of creation of reservation (MB21) and I manually generate the IDoc (WE19) and create the  reservation document via BD87. I also want to make the change and the removal of the reservation by IDoc.

How can I requested modification or deletion of the reservation by IDoc?

Thanks in advance for your help