diff --git a/.order b/.order
index 0de313d..77d8b7f 100644
--- a/.order
+++ b/.order
@@ -7,5 +7,7 @@ versioning
 branching-code-review-process
 network
 service-catalogue
+know-how/git-commands
+know-how/sap-tricks
 faq
 CHANGELOG
diff --git a/know-how/git-commands b/know-how/git-commands.md
similarity index 66%
rename from know-how/git-commands
rename to know-how/git-commands.md
index 18b063d..8d5136a 100644
--- a/know-how/git-commands
+++ b/know-how/git-commands.md
@@ -1,26 +1,26 @@
 # Git Commands
 
-## Random ideas
+## Random Ideas
 
 [Kart: DVC for geospatial and tabular data. Git for GIS](https://kartproject.org/), [Discussion](https://news.ycombinator.com/item?id=38073512#git), [Go to Post from 2023-10-30T20:40:06](https://social.lansky.name/@hn50/111325898767760054)
 
-[Use KeePassXC to sign your git commits](https://code.mendhak.com/keepassxc-sign-git-commit-with-ssh/)
+[Use KeePassXC to sign your Git commits](https://code.mendhak.com/keepassxc-sign-git-commit-with-ssh/)
 
-## Git commands and examples
+## Git Commands and Examples
 
-Create a new branch locally within a already cloned repository:
+Create a new branch locally within an already cloned repository:
 
 ```bash
-git branch -b <branch-name>
+git checkout -b <branch-name>
 ```
 
-Delete local branch
+Delete a local branch:
 
 ```bash
 git branch -d <branch-name>
 ```
 
-Rebase auf main branch:
+Rebase onto the main branch:
 
 ```bash
 git fetch
@@ -28,54 +28,54 @@ git rebase origin/main
 git push origin HEAD -f
 ```
 
-Abort rebase:
+Abort a rebase:
 
 ```bash
 git rebase --abort
 ```
 
-Stash changes
+Stash changes:
 
 ```bash
 git stash
-git stash pop
+git stash pop
 ```
 
-Revwert a commit:
+Revert a commit:
 
 ```bash
-# Sollte funktionieren, wenn nur 1 Commit geamcht wurde
+# Should work if only 1 commit was made
 git reset --soft HEAD~1
 
-# Eher Brechstange:
+# More forceful approach:
 git revert cb7cf15b54ff09495201244b070d18d96d4703ce
 git reset --hard HEAD~2
 ```
 
-Show changes beween two tags:
+Show changes between two tags:
 
 ```bash
-# tag from previouse version
+# Tag from previous version
 git tag -a v0.1.0 -m "Release version 0.1.0"
 
-# add changes
+# Add changes
 git commit -am "add hint for change log"
 # and more
 
-# add final tag vor version
+# Add final tag for version
 git tag -a v0.2.0 -m "Release version 0.2.0"
 
-# show diff between tags
+# Show diff between tags
 git log v0.1.0..v0.2.0 --no-merges --format="%h - %s" --date=short
 ```
 
-Git diff log between commits
+Git diff log between commits:
 
 ```bash
 git log 79e28d9cef4cc777afc9e5b2569a5d34d9331867..6888fd61ae9d5744effcf27620a645e1750cbafc --no-merges --format="%h - %s (%an, %ad)" --date=short
 ```
 
-Debug SSH connection via git
+Debug SSH connection via Git:
 
 ```bash
 GIT_SSH_COMMAND="ssh -v"
@@ -83,16 +83,15 @@ git pull
 unset GIT_SSH_COMMAND
 ```
 
-Add executable flag on windows
+Add executable flag on Windows:
 
 ```bash
 git update-index --chmod=+x git_mirror.sh
 ```
 
-check the remote branch of a cloned repository and change it
+Check the remote branch of a cloned repository and change it:
 
 ```bash
-
 git remote -v
 
 git remote set-url origin xwr@vs-ssh.visualstudio.com:v3/xwr/jambor.pro/app-docker-compose
@@ -106,19 +105,18 @@ for branch in $(git branch -r | grep -v '\->'); do
 done
 ```
 
-Renaming branches
+Renaming branches:
 
 ```bash
-
-# delete remote branch
+# Delete remote branch
 git push origin --delete wikiMaster
 
-# delete local branch
+# Delete local branch
 git branch -d wikiMaster
 
-# move branch
+# Move branch
 git branch -m main wikiMaster
 
-# push
+# Push
 git push origin HEAD
 ```
diff --git a/know-how/sap-tricks.md b/know-how/sap-tricks.md
new file mode 100644
index 0000000..1421c88
--- /dev/null
+++ b/know-how/sap-tricks.md
@@ -0,0 +1,129 @@
+# SAP Tricks
+
+Navigation mit Fenstern im Transaktionsfeld:
+
+`/N` = Wechsel  
+`/O` = Neue Session
+
+## Tabellen
+
+Ansicht via SE16N:
+
+- T001W - Werke
+- T024E - EKORG
+- TVKO - VKORG
+- PROJ - Projekte
+- T179 - Produkthierarchie
+
+## Transaktionen
+
+- Projekte: CJ20N
+- SQ00: Start Queries (haben manchmal Leute, die alle anderen SQ** nicht haben)
+- SQ01: Queries pflegen
+- SQ02: Infoset pflegen
+- SQ03: Benutzergruppen pflegen
+- SE38: ABAP Editor
+- SA38: ABAP ausführen
+- SU01: Benutzer pflegen
+- SU01D: Benutzer anzeigen
+- /UI2/FLP: Fiori Launchpad
+
+## SAP Darstellung
+
+- Dark Theme = Quartz Dark Theme
+- Old School = Blue Crystal Theme
+
+![SAP Dark Theme](../resources/images/sap-tricks-theme-1.png)
+
+![SAP Dark Theme](../resources/images/sap-tricks-theme-2.png)
+
+## Text markieren
+
+So kann man zum Beispiel mehrere Zellen markieren, geht aber nur auf einem Bildschirm ohne Scrollen.
+
+```text
+CTRL+Y
+```
+
+## SE16N
+
+Wenn keine Berechtigung, dann mal mit "ZSE16N" versuchen zu starten. Gemäss Alex Friess soll das dasselbe sein, nur ohne Änderungsberechtigung.
+
+Feldlängen anzeigen via "Technische Sicht":
+
+![Feldlängen anzeigen](../resources/images/sap-tricks-se16n-1.jpg)
+
+Varianten speichern oder holen:
+
+![Varianten speichern oder holen](../resources/images/sap-tricks-se16n-2.png)
+
+Technische Felder in Listenausgabe:
+
+![Technische Felder in Listenausgabe](../resources/images/sap-tricks-se16n-3.png)
+![Technische Felder in Listenausgabe](../resources/images/sap-tricks-se16n-4.png)
+
+## SQ01/SQ02 Export in Excel
+
+Ein Excel-Export funktioniert über diesen Knopf nicht in jedem Fall. Hier geht es aber immer:
+
+![SQ01/SQ02 Export in Excel](../resources/images/sap-tricks-sq0102-1.png)
+
+Oder der Button, wenn vorhanden:
+
+![SQ01/SQ02 Export in Excel](../resources/images/sap-tricks-sq0102-2.png)
+
+## SQ02 InfoSet: Berechnete Spalte
+
+Kann mittels ABAP erreicht werden.
+
+![SQ02 InfoSet Berechnete Spalte](../resources/images/sap-tricks-sq02-1.png)
+
+Typ und Länge vom Feld am besten bei einem anderen ähnlichen Feld abgucken in der SE16N.
+
+CHAR = C
+
+![SQ02 InfoSet Berechnete Spalte](../resources/images/sap-tricks-sq02-2.png)
+
+Den neuen Eintrag dann selektieren und Coding zum Feld anlegen.
+
+![SQ02 InfoSet Berechnete Spalte](../resources/images/sap-tricks-sq02-3.png)
+
+Beispiel-Code:
+
+```ABAP
+DATA: lv_vbund TYPE vbund.
+
+CLEAR: lv_vbund.
+
+CHECK: kna1-kunnr IS NOT INITIAL OR lfa1-lifnr IS NOT INITIAL.
+
+IF kna1-kunnr IS NOT INITIAL.
+  SELECT SINGLE vbund INTO lv_vbund FROM kna1 WHERE kunnr = kna1-kunnr.
+ELSEIF lfa1-lifnr IS NOT INITIAL.
+  SELECT SINGLE vbund INTO lv_vbund FROM lfa1 WHERE lifnr = lfa1-lifnr.
+ENDIF.
+
+vbund = lv_vbund. " Assign the value to the additional field
+```
+
+SAP ist, was Queries angeht, eine mühsame Angelegenheit, wenn man keine Berechtigung oder Ahnung hat als Developer.
+
+1. Infoset anlegen. Da bildet man die Beziehung zwischen Tabellen mittels JOIN ab. Aber es ist sehr limitiert. Im konkreten Fall habe ich das gebaut:
+
+![SQ02 InfoSet Berechnete Spalte](../resources/images/sap-tricks-sq02-4.jpg)
+
+1. Query bauen. Hier gibt es keine CASE-WHEN-Funktion. Im konkreten Fall hätte ich dann 2 Spalten mit VBUND gehabt, einmal die aus der LFA1 und einmal die aus der KNA1. Ich will aber je nachdem, was es ist, was ich da gerade selektiere, das Ergebnis in einer Spalte haben.
+
+Das ABAP-Code-Schnipselchen ist der Inhalt eines sogenannten Zusatzfeldes. Dies ist eine berechnete Spalte im SAP-Slang. Es wird also in der Spalte geschaut, haben wir eine KNA1 oder eine LFA1 und dann je nachdem, was es ist, die VBUND genommen.
+
+## Änderungshistorie BP Geschäftspartner Felder
+
+Transaktion BP:
+
+- Geschäftspartner auswählen
+- Feld suchen, das man ansehen will und Text markieren
+- Zusätze > Änderungshistorie > Für dieses Feld
+
+![Änderungshistorie](../resources/images/sap-tricks-aenderungshistorie-1.png)
+
+![Änderungshistorie](../resources/images/sap-tricks-aenderungshistorie-2.png)
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