When subgroup index is filled...Error:
When 'Sub-group index' is filled, 'Sub-group header' and/or 'Sub-group footer' has to be filled too.
Explanation:
Normally, articles belonging to an article group are described in one article table, but you can choose to show several article tables under one article group.
By means of the Sub-group header and/or footer, the articles within the article group are divided into sub-groups. The Sub-group index column determines the order of the sub-groups. This index only makes sense if sub-groups have been defined using the Sub-group header/footer. If an index is filled in, the Sub-group header and/or footer must be filled in, otherwise there are no subgroups.
Solution:
Please also enter a subgroup header and/or footer in the articles where a subgroup index has been entered.
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