Runtime Error COPA Report KE30 - Assign_Length_0

Dear users,

As ABAP is unknown terrain for me, I stumbled upon an error which I can't seem to bypass. I do not know wheter this is the right forum to ask the question, so if I'm wrong, please do correct me.

Current situation

1. I've added a user def COPA Characteristic to the operating concern X.

2. I've made a realignment run to fill table CE40001 (prof segments)

3. Ive created a report (with form) where the report uses the field (point 1) as a drill down object.

When running this report, I immediatly get the error 'Assign length 0' - in program "SAPMKCBE", module "SEIG_POSITIONIEREN"

When looking at the error it stumbles at understanding code. It seems that

1. looking for value in table 'field_tab', which is CE10001

2. field "Reffl"

But as I've checked the table, this field does not exist. So this is where I'm stuck;

Allready thanks for any help that you can provide!

Ben

74	      IF SY-SUBRC EQ 0.
75	        IF L_S_LCOL_CHAR-DIMPR EQ DIMPR_L  OR
76	           L_S_LCOL_CHAR-DIMPR EQ DIMPR_KL OR
77	           L_S_LCOL_CHAR-DIMPR EQ DIMPR_LK.
78	          IF FIELD_TAB-FIENM NE SEIG-FNAM.
79	            READ TABLE FIELD_TAB WITH KEY
80	                                 FIENM = SEIG-FNAM BINARY SEARCH.
81	          ENDIF.
82	          I = FIELD_TAB-REFLL.
83	          ASSIGN FELD1(I) TO <TEXT>.                   "#EC *
84	        ELSE.
85	          ASSIGN FELD1(20) TO <TEXT>.
86	        ENDIF.