Support Patch application

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Hi Experts

We want to upgrade our SAP_APPL from 13 to 18.

I have found out the dependent patches from SMP.

Our current SP level is:

SAP_ABA 700 0015

SAP_BASIS 700 0015

PI_BASIS 2006_1_700 0005

ST-PI 2008_1_700 0001

SAP_BW 700 0017

SAP_AP 700 0013

SAP_APPL 600 0013

For upgrading APPL to 18, we have to upgrade BW to 24, BASIS and ABAP to 22, AP to 21 and PI to 12.

Following are the patches I need to apply, also in the following order.

1 SAPKB70016 2 SAPKA70016 3 SAPKB70017 4 SAPKA70017 5 SAPKB70018 6 SAPKA70018 7 SAPKB70019 8 SAPKA70019 9 SAPKB70020 10 SAPKA70020 11 SAPKB70021 12 SAPKA70021 13 SAPKA70022 14 SAPKA70022 15 SAPKIPYM06 16 SAPKIPYM07 17 SAPKIPYM08 18 SAPKIPYM09 19 SAPKIPYM10 20 SAPKIPYM11 21 SAPKIPYM12 22 SAPKW70018 23 SAPKW70019 24 SAPKW70020 25 SAPKW70021 26 SAPKW70022 27 SAPKW70023 28 SAPKW70024 29 SAPKNA7014 30 SAPKNA7015 31 SAPKNA7016 32 SAPKNA7017 33 SAPKNA7018 34 SAPKNA7019 35 SAPKNA7020 36 SAPKNA7021 37 SAPKH60014 38 SAPKH60015 39 SAPKH60016 40 SAPKH60017 41 SAPKH60018

I am getting very worried about applying the above patches.

I am not sure about other dependencies also, other than that of software components.

Can you please help me out, and suggest me the pre requisites on the same.

Also, on how should I make the Queue for the patches

Thanks

Harikrishna