Issue while re-opening BPF Step

Hi Experts,

User is facing the issue "Could not perform operation; Contact your Planning and Consolidation administrator" while he tried to re-open the BPF step by selecting the Re-open step button.

We have checked this issue by giving  same access as user having to one of our teammate and it works fine at our side.But it is not working in user system.

SAP BPC 7.5 NW version with SP 15.

Can any one help us to resolve this issue.

Thanks,

Firoz