Maintenance Plan Scheduling and Shift

Hi Experts,

Please I need your help regarding the following topic, for some maintenance plan Calls, when the business checks the capacity load they decide to shift them for another dates in the future (or before the planned date).

In the standard SAP the system does not allow me to shift the Maintenance Plan calls without service orders to another date. Please how can I solve this issue ?

Example:

Maintenance Plan n°: 100 / Cycle: 1 month

Maintenance Scheduling: START DATE 01.01.2021

• Call 1: 02.01.2021
• Call 2: 03.01.2021
• Call 3: 04.01.2021
• Call 4: 05.01.2021
• Call 5: 06.01.2021

If the business decides for capacity reason to shift Call 3 from 04.01.2021 to another date 04.25.2021 the system does not allow me to do that,

Thank you in advance,

Regards,