Backdated service purchase throwing PIN_FLD_END_T validation error

Hi,

While trying to purchase a service backdated , system is throwing error as follows

op_subscription_purchase_deal error

        <location=PIN_ERRLOC_FM:5 class="PIN_ERRCLASS_APPLICATION":4 errno=PIN_ERR_VALIDATION_FAILED:198>

        <field num=PIN_FLD_END_T:8,62 recid=0 reserved=181 reserved2=0 time(sec:usec)=0:0>

        <facility=0 msg_id=0 version=0>

in input flist PIN_FLD_END_T is given backdated value as follows and also account creation date is well ahead with new backdated date so account creation date conflict is not issue.

Sample flist for opcode PCM_OP_CUST_MODIFY_CUSTOMER

0 PIN_FLD_POID           POID [0] 0.0.0.1 /plan -1 0

0 PIN_FLD_ACCOUNT_OBJ    POID [0] 0.0.0.1 /account 48423872123 0