Document splitting generate lines with alternative +/- signs, M No.GLT0002

Dears,

We are working on ECC5 , when we are posting incoming payment

entry by using Tcode "F-28" we are getting one error saying

that "Document splitting generate lines with alternative +/- signs,

Message No. GLT0002.

Is anybody have an idea on it. Please help us.

Regards,

Kalpik Shah