Index of the list currently being created. The basic list has SY-LSIND = 0, detail lists have SY-LSIND > 0. The field is automatically increased by one in each interactive list event. You may change the value of SY-LSIND yourself in the program to enable you to navigate between lists. Changes to SY-LSIND do not take effect until the end of a list event. It is therefore a good idea to place the relevant statement at the end of the corresponding processing block.