Hi Yousuf,
The special GL indicator "I" should not be selected as Noted items in configuration. Here you assign alternative recon.account to the main account. After that you maintain clearing account in OBXS for the account type K and special GL indicator I. After done these, first you have to do posting in F-55, here system will create below accounting entry:
Bank Guarantee(vendor A/c) Dr
clearing account A/c Cr
Once you receive the amount, then below accounting entry will be posted.
Bank A/c Dr
Vendor A/c Cr
Regards,
Mukthar