Clarification Required – Securities Safecustody Fee Process

Hi Team,
I seek your assistance in understanding the Securities Safecustody Fee process.
Please find below the scenario and my queries:
Date: 02 Jan 2025
I have configured the fee frequency as quarterly (e.g., 31 March 2025 – M0331) in SAFECUSTODY.VALUES with manual posting (POST.CHARGES = NO).
The accrual category is set as 12011 and the credit category code as 52501 in SAFECUSTODY.VALUES
On 31 March 2025 COB, the system generated a SAFEKEEP.HOLDING record for my portfolio, and the system posted:
Debit: 12011 (accrued suspense)
Credit: 52051 (P&L)
On 5 April 2025, I created and authorized a SC.SAFE.FEES.POST record.
The BNK/SC.SAFE.FEES.POST service ran, and entries were posted as:
Debit: Customer safekeep account
Credit: Accrued category (12011)
Query:
Will the system post the following accrual entries at each month-end COB before the final charge on 31 March 2025? Or will a single entry for the full amount (e.g., 500) be posted only on 31 March 2025?
Example:
31 Jan 2025 → DR 12011 & CR 52051 (e.g., 100)?
28 Feb 2025 → DR 12011 & CR 52051 (e.g., 200)?
31 Mar 2025 → DR 12011 & CR 52051 (e.g., 300)?
Please confirm whether the system accrues monthly or posts the full amount at quarter-end.
Thanks in advance for your support.
Best regards,